A formal total synthesis of aklavinone via a blocked anthraquinone tautomer
作者:George A. Kraus、John A. Walling
DOI:10.1016/s0040-4039(00)84398-1
日期:1986.1
An advanced intermediate in the Kishi synthesis of aklavinone was prepared. Juglone was converted into enone 4. Quinone 6 was then prepared from 4 by Michael addition and elimination of PhSOH and HCN.
Mukaiyama Aldol Reactions Catalyzed by a Trimeric Organo Aluminum(III) Alkoxide
作者:So Han Kim、Sungwoo Yoon、Youngjo Kim、John G. Verkade
DOI:10.1080/10426507.2014.906427
日期:2014.8.3
Tandem Pd-catalyzed C–C coupling/recyclization of 2-(2-bromoaryl)cyclopropane-1,1-dicarboxylates with primary nitro alkanes
作者:Andrey A. Mikhaylov、Alexander D. Dilman、Roman A. Novikov、Yulia A. Khoroshutina、Marina I. Struchkova、Dmitry E. Arkhipov、Yulia V. Nelyubina、Andrey A. Tabolin、Sema L. Ioffe
DOI:10.1016/j.tetlet.2015.10.091
日期:2016.1
The first successful synthesis of 1H-2,3-benzoxazine 3-oxides has been described. The efficiency of the approach is provided by the C-C-coupling of 2-(2-bromoaryl)cyclopropane-1,1-dicarboxylates with primary nitroalkanes catalyzed by Pd(dba)(2)/JohnPhos system followed by in situ recyclization of the intermediates. Several representative transformations allowing selective modification of the nitronate as well as malonate functionalities in the resulting compounds are demonstrated. (C) 2015 Elsevier Ltd. All rights reserved.